Clutch and brake mechanism.



C. W. PARKER.

CLUTCH AND BRAKE MEGHNISM.

APPLICATION HLED N0V.14, 1910.

'Mnted Feb. 2, l.

1 SHEETS-SHEET l.

f unl-Iii WITNESSES APPLIUATION FILED NOV.14, 1910.

Patented Feb. 2, 1915.

4 SHBETSSEEBT 2.

G. W. PARKER.

CLUTCH AND BRAKE MBGHAMSM.

APPLICATION FILED NOV.14, 1910.

'Patented Feb.2, 1915.

4 SHEETS-SHEET 3.

C. W. PARKER.

CLUTCH AND BRAKE MEUHANISM.

APPLICATION FILED Nov. 14, 1910.

.Patented Feb. 2,

.ments in Clutch and Brake Uran strains ra OFFICE CLARK `W. PARKER, OFSPRINGEIELD, MASSACHBETTS, ASSIGNOR T0 PARKER TRANS- MISSION ANDAPLXANGE CGIyPrNY, OF SPRNGFIELD, MASSACHUSETTS, A CORPO- RATION GFMASSACHUSETTS.

CLUTCH ANI@ BRAKE MECHANISM.

Specification ot Letters Patent.

Patented Feb. 2, 1915.

To @ZZ 'whom t may concern Be it known that 1 "Lann liv. Pannen, acitizen of the United States of America, and a resident ot' Springfield.county ot' Hampden, and State of .liassachusettsy have invented certainnew and usciu improvelrleehanism, of which the following is aspecification, reference being had 'to the accompanying draw-` ings,'forming a part thereof.

My invention relates to clutch mechanism, and particularly to frictionclutch mechanism such as ci.' the type connrionly employed in motor carconstruction for connccting the motor with the transmission gearing orother arts to be driven and my invention consists first, lin thecin'iloynient of main and suodeinentary clutch elements. the formerbeing adapted to be released earlier, and oper rely connected later; inthe operation oi. the clutch a whole, than the latter, the snpplemcntaryportion of the clutchcomprising a connection capable of transn'iittingbut ll tle povver, that is to say, under comparatively slight resistancethcconner-tion will 'yield and slp; Second, in a novel form oi brakemechanism in cour bination with Friction clutch `means by which themomentinn of the driven parts may be absorbed after the :hitch has beenoperated to release them from a drivinj` and particularly in a yieldingmeans cnr ployed in the bralrc mcchanisnnand tno combination therewithof a relatively justed 'yielding me: is employed in the clutchmecianism; and third, in the coinbination of the clutch and hralremechanism and the operating means therefor, with a locking means,whereby the said locking means is not released until a certain point hasbeen reached in the operation of the clutch and brake mechanism.

The main object of my invention is to avoid shock both in the operationof the. clutch and in the operation of parts driven through the clutch.

ln `carrying out my invention l employ man v novel details ofconstruction and combina-tions et' parts such as will be `tally pointedout hereinafter, and in order that inv invention may be thoroughlyvundenstbod, I wiil now proceed to describe an einbodimcnt thereof,having reference to the accompanying drawings illustrating the saine,and will then features in claims.

ln 'the drawings: Figure 1 is a View in central vertical longitudinalsection through a clutch and brake mechanism constructed in accordancewith my invention, the plane of section being indicated by the line 1-1in Fig. 23. F ig. 2 is a detail view in central longitudinal sectionthrough the clutch and brake members and their-correlated parts, theplane of section being indicated by the line in Fig. 3. Fig. 3 is atransverse sectional view upon the line 3 ot' Fig. l, the outer casinghaving been removed. Fig. l. is a traY sversc sectional view upon theline i-"1 of Fig. l. Fig. 5 is a transverse sectional view -upon theline 5-5 of Fig. 1. Fig. t is a dctailvicw in perspective of one or thcparts to bc driven, .such part being hereinafter termed the driven hub.Fig. T is a detail view in perspective of a sliding huh employed.

The driving clement comprises a shaft 10, a portion of which appears inFigs. l and 2, sich shaft conveniently comprising the shaft of a drivingmotor. Secured to the rear end ot this shaft is a driving hub 11. Thisdriving hub includes a head 1:2 and a substantially cylindrical ring 13,the latter in the construction herein shown being Securely point out thelnovel fastened to the former by means of bolts 14.

ll'lounted conccntrically with the said driving shaft 10 and driving hub11 is a driven hub 15, for a detail view of which see Fig.l 6. This hubcomprises a central shaft portion 1G. the greater part of which ispreferably hollow. a head 1T, and a plurality of longi tudinal channelbars 1S supported by the head A17 and projecting rearwardly thereofparallel with the said shaft portion 16. The 'forward end of the shaftportion 16 is conveniently supported by an anti-friction bea-ring 1'.)carried by the rear extremity of the shaft 10 While the rear end of theshaft portion 1G is .conveniently squared as at 2O and received within acorresponding socket formed in a sleeve or collar 21 which forms onemember of a coupling means 22 such as constitutes a means by which thedriven hnb l5 is permanently connected to-rotate with the parts to bedriven. The collar or sleeve 21 is mounted to rotate in a suitable antifiction bearing 23 carried by a casing 24 in which the clutch and brakemechanism is low shaft portion llo of the driven he.

.hub 15 is a support contained, :is will-be readily seen hy ence to Fig.1 of the drawings. The two -benrings 19 rindv 23 constitute the ineensby Fig. T). This element per :es oi' the movement of .rotation of thedri Iten huh but is permitted :i relative longitudi: il

movenient with respect theretovr .lt e p prises n sleeve 26 whichsurrounds tee n a plurality ci radialy prolieetiug n" which have-lone'ztir inellv eritendi"l tions 28 eonstitnting ofi miel. ironsbetween the. etienne? here 1o of the -flrlre hb 15, the intl n lie ll l

e of the sind e .i irons :resting upon portions Yof the heed 3ft of thesaid driven ,hath l5, n ring 29 if'orx as an integral part of thesliding huh und which constitutes :i forward :ibut:` for certain Aoi thefriction disks,

wilt presently he eiipiemed, and another ring 30 secured thereto by .escrew-threaded en ment (see particularly Fig. il and 'w forms :motherlabutment 'or others of the friction disks es will :ilse app hereinaiter.It may he notedthet the r l0 has been removed ironi the sliding ho` inthe perspective view Fig. 7, out it is supported bythe screw-threadedprojections 31 elerfirly illustrated in that ligure, and is shown inplace in Fig. e.

A ring 32 similar to the ring 3h is mounted in screw-threaded engagementupon ifs-.farew-v threaded portion 53 of the driven'hul;` l5.;y the saidring being removed in the tive view Fig. (i, but clearly shown monntw edupon the driven vheb in l1 ig. 2. "lfl'iis ring; likewise constitutes:in abutment for Acertain of the friction disks es will likewise presently appear.` There are .three grou friction dlsksei'nployed, thegroups respectively designated by the refe snee characters 34E-'35 Arind3d Esel: off these groups comprise two sets ofdisks 1r in dividualniemhers are arranged in alte/rmx.n

lationwithin lthe channel bars 1S of the driven hub, the other set. oreach of the groups 34.- ond havingoutwardly pro- 1 1, and the otljecting toiignes 38 which are received within channels 39 formed uponthc'inner ser ofthe eyhndri l oit the dri? similar ontw'mrdlL which arereeeired im ranged upon the uri :iryring il whim is :eeured Lieoee ing2:1 hy means of stub bolts or cap screws (see Fig. il). For purposes ofthe present speeiieetion, the disks of groups 311 und l5 .muy'be termedclutch disks and the disks ol the group 3G broke disks. Oi' the clutchdisks those of the group di may be termed the main clutch disks andthose of the group 35 the sn} ple1nentory clutch disks. ll.`he clutchdisk groujris Z55-.l :1nd 35 are disposed between, the stationarynbutlnents 529 und 32 f, 'le the disks of the group 36 nre disposed reenthe stationery nhutments 32 und 30. Vlhe `rnfrin und sopplen'ientaryclutch disk groups Si and 35 el o. sepurnting plete 413., and there is:i similfir separating plate urran'red in front of the group 34, andanother separating-plate arranged in liront of the group 256. The ratingplates 4S :ind 44 nre carried by the driving' hub, 'timing plfo'v'idedwith ontrvnrdl'v jln'ojeeting ton nies Alo, corresponding to the tongues3S ol the disks of the groups iet :ind 3J, and received as in the easeof the sind disk tongues, within the channels 39 of the ring 13. lfheseparatn r ring 45 on the other hund is provided with inwardlyprojecting tongues 47 corresponding to the in- 2 :rrdly projectietongues 37 of the disks 36, ond .likethem received within the channelhars 18 oi the driven hub 15.

,i r reason of the ioregonig the separatiig plates #i3 und 44 rotatewith the dr1vhoh while thel sepiufating plate 45 roo s will the drivenVholo 15. These separr ine etes also constitute 1n eiiect frlctlondisks, their surfaces being used for friction purposes in :i similarmanner to that in :1re separated Ly means dial :rings 48 (see Figs. 3and 4) between which are arranged helical springs 49 which are normallyunder tension, so that they exert a. force to press the said sepurutinplates sport. Threaded bolts 50 pass rough openings in the Seid wings 48and thmpgh the helical springs 19, the said bolts bei provided with nuts51 by means of whi their position longitudmilly may be adjusted., l"Withthe parts in. the position shown in the drawings the heads or thebolts/50 are disposed otisome little distance in front of the separatingplate 44 so that the Separut ing plate 44 is capable of a movement to s.limited distance nwuv from the separating plate 4:3, after which the twoplates will more together. The separating plate l5 is provided withinwardly' projecting Wings 32 which erre arranged .in line withcorrespondintl wings carole-l h the driven hul), :ind 511 :n tween thetwo `:ets "L the scpurfitir`a` pleite lv from the i l the drivenmir/ernten, is llininsegne 1G ot the driven, hub 15 and is partially inclosed Within the sleeve QG of the interniedr ate or sliding hub Thisspring is under normal compression and exerts a force tending to morethe 'driven and ii'rterniediate hubs longitudinally in oppositedirections,

e wherein the abutment 29 carried by the hub 25 will inove toward theabutment 32 carried by the hub l5.

Mounted upon the rear end of the intermediate or sliding hub 25 is a.collar 5T, the

connection between the said e'ollar and slid-' ing hub being):-preferably an anti-friction ball hearing one asis shown. This connectionis suehas to permit a free movement of rotation of the sliding hub withrespect to the collar `While compelling .the two said parte to partakethe one of the longitudinal movements of the other. The collar 57 isprovided with trunnions '58 which are roeeived by operating. arms o9pirotally mounted by ine-ans or' a roel; shaft ('50 in the easing 24 thetwo ends or" the roch sha't't 6() being connected by a yoke 6l 'whichpasses beneath 'the collar asis clearly shown-in Fig. Any suitableoperating' element such, tor'instance, as a pedal lever 62, may besecured 'to the roel: shaft 6G, and by 'the manipulation of which therock shaft may befoperated. Located in proximity to some' part movableupon the operation ot the clutch is a locking device here shown as inthe torna of a locking quadrant 63. The said quadrant is mounted upon aroel; shaft 64, which is provided in the present instance with anoperating arm 65, connected by a link-GG with the 'pedal lever 62,whereby when thepedallever is operated a rocking movement will beimparted to the quadrai'it. The quadrant engages a locking pin 6'? earr"d by an element 58 which is to be locked :f Ieinst iii-oninent in thenormal running condition of the partsh This` element 68 may constitutetor instance a shipping rod for controlling the operation ottransmission gearing mechanism.

The operation of the device is as follows: Considering the parts' intheir normal positions and in which they are shown in the drawings, thespring 56 exerts a pressure between the driven hub 15 andthe'intermediate or sliding hub 25 such torce the abutinents Z9-32 to?"causes the sets of disks of thel l ll-35 to be forced into intimate i"enga., 'euient5 it being' noted that t the spring 5G is a great dealmore necessaryY to overcome the slight n ol" the helical springs llltending to separating plates l3--ll apart. remembered that one set otthe dislis oli each of the groups 3l- 35 with the dri ring;` huh whilethe etner set if.; eonnertedto rotate with the driven lio, it will thenfollow that under suoli eouditii r the driving' and driven hub; will leeen neeted to rotate together. The two sets o?? disks of the group 3Gbeing at such time out ol rietional en ip jeinent as has been statedabove, the relative rotation of one or the s with respect to the`otherwill at sue-li times be a movement idle to any izninediateiy use fulresult. Now if pressure be applied the lever (32 in a. direction towardthe l (as riewed in Fig'. l). the result will he that the sliding' hubwill be moved to the lolt with respect to the driving and driven liuDuring.; the first part oil this armement t lost motion will be talfenup b ,aen front face of the separating dish -l--l und l rear faces oi"the heads et the bolts` 5l), l ie sa selniratingdish 1l-fl following'the movement oli' the abutment 29 under the inli'ience or the springs'fl-?. rlhis will result in the two 'from oi'ierative 'tiietioualengrag; nient, 10G extent of this niovenwnt being' s( newlirt excess of'that suiiie nt to r i them. being' relieved, the spi-ins,A

maintain the disks ol tir, :of lgroup $55 in Alrictioifial a graduallydecreasing' ioree said'springs are expanding` and i is being therebyabsorbed. Du: the movement ot the abutment i5!) away n1 the il( abutment32? the abutment 3C' wil` niorinfg' toward it. ln the lii'st part olfsurh movement oft' the abutment BO, i betueeu the individual dislis i 'egroup 36 and between the iid giro the separating' plate fil-5. wijl beA,aire-fi and in the continued nio.'onient ol'v 'the parts, a, pressure.yielding because the helical springs 5i, will be imparted to the brakedisks, .i'l'iereby in tliei intiinate rietional engagement a bra actionwill be iniparted 'to the driven parts such of course resulting i nietthat one set of the di secured to rotate with the driven huh, while theother set is held stationary by n u substantially. as and for thepurpose described.

9,. Mechanism of the class described comprising a driving element, adriven element, and a stationary element, co-actin9 friction clutchelements connected to rotate resnee tively with the driving and drivenelements. {zo-acting friction brake elements.I the one ot' which isconnected to rotate with the driven element and the other of which issecured to the stationary t and thereby held against rotation. 1o:u'ierating means movable to and between we positions, in one of whichthe clutch mechanism only is operated, in, the other of which the brakemechanism only is operated, and in a cosition thereof intermediate thetwo said positions both the Said clutch and brake mechanisms arepartiell)Y operated, so that in one lposition there will be a point oieinheimtiul balance between them.

3. Mechanism of the class described com prising a driving' element,and-driven elements including' a. rotary hub which is l; eid .againstlongitudinal movement. and a. ing hub mounted to rotate with the n saidhub but permitted longitudinal movements with respect thereto,co-actinnfriction clutch elements connected to rois spectively with thedrivingr and driv ments, co-actiint;r friction brake clemente the one ofwhich isconnected to rotate with thc driven element and the other ofwhich is held against rotation, one of the said driven clement hubsbeing provided with two cuil abutments for respective engagement with aclutch element at one end and with a brake element at the other end, andthe other of the said driven element hubs being: provided with anintermediate abutment located tween the said clutch and brake elements`in position to coact with both the brake and clutch elements during' thelongitudinal movements of seid sliding hub, and means for impartinglongitudinal rnovemenfcs to the said sliding hub.

et. Mechanism o the class des -d con prising a driving' element, diiveu.elements includingr a rotary hub which is h id against longitudinalmovement, and a shift ing hub mounted to rotate with the tiret said hubbut permitted longitudinal movements with respect `thereto, a group ofclutch disks comprising two sets one' ci: which is connected to rotatewith the driving element and the other ot which is con nected to rotatewiththc driven elenwnt.y a

'group ot' brake disks comprising two sets one oi? which is connected torotate with the driven element, and the other or which held againstrotation, one of the said i element huhs being provided with tuabutments for respective engagement v 'i the clutch disks at one end andwi brake disks at the other end, and

will be freed, and the said brake disks will he pressed .'onje'hor bythe intermediate abutment and the other oi" the said end abut ments.

Mechanism of the class described cominisingj a drivin lement a drivenclement rnccntrically therewith, a group oli cli mounted c ,ncentricallywith the ving and driven elements and' coing-wrm, 1 tivo :actsn one oi'which is connested o rotate with the driving' element and L other oitwhich is connected to rotate with the driven element, a group ot' lnaliedisks concentricaliv mounted to the o' the clutch oisli's and alsoCornnl sing; two f, ts, one of which is connected to rotate with thedriven clement. and the other ot' which i=1 held against rotation, the idri i-lomf icing' provided with an abutment arranged hctween the saidclutch anl brake flis'l into position to coact with both the clutchV andhrnlce disks, and :t lon- ,fritudinuilliv movrbhe, sliding hub havingend abutnwnls, the arranged in front of the sini. clutch di: und theother arranged to t :o rear ol tinl said iii-alte disks, and oneratingjinca; t 52 the said sliding hub longitud iallv uith respect to theabutment carried bj. the said driven elements.

il. ii'icchan' ni oi the class de 'ribed cornnrisingg' a driving;element, a driven element, a friction clutch meel. ,nfm for connect-vthcnn riction brake mechanism for the driven ydement,A operating: inea smovc 'on to operate the clutch and into mother position to operate 'thehrahc 'mt-clim ism, the clutch and in'ake mechanisms being; arranged sothat the operations thereof overlap when the operatii'ig means isintermediate said positions, yielding pressure means for controlling theapplication of the oralfc mechanisn'i, and yielding pressure means torcontrolling the aozinlication of the clutch mechanism during Vtheoverlapping' of the operations of the ther ion brake mechanism for J 1drm n nent and yielding pressure means.

, mechanism, yielding 'pres` tch mechanism, e.

prising a driving: clement, a driven element, friction clutch mechanism:for connectine' them, friction brake mechanism for the driven elementand i culling 'pressure meane for the brake mechanism, rief ling Ipres"connected to the clutch ann L mechanisms to ence iy re the clutchmechanism and apply me bit-:lite

mechanism, and the yielding iai-gestire means of the brake and clutchmechanisms beineA arranged to overlap in their operations and beingarranged so that one yielding;r 'pres sare meant,` increases as theother decreases during the operation of said member, and a main spring!tending to hold the friction clutch mechanism in engagement and thefriction brake mechanism ont of cnffagement, substantiaily as andfoi-'the pnriiose specified.

9. Mechanism of the t iss descrild. cent prising a driving elena ii, adriven element friction clutch meer4 ni nfor connecting them, frictionlimite mechani et, for the driven element. yielding pressure means forthe brake mechanism, operati g means For the clutch and bralte mechansin inchaline' means for operatinigi1 the braite mechanism, through thesaid yielding pressure means while simnltaneon'sliy releasing: presenteupon the clutch mechanism, and an abut ment for the brake meel enisni,lwhe upon a further mo mnent of the said i ating means` nositi tncn/ieh'ing pressure may bo applied to the said brake mttlmk nism.

10. In mechanism of the class described, a driying element, a. drivenelement, and a stationary element, the driven element in" cluding twomembers rotatable together and one slidable lengthwise .oithe other, theslidable member being formed with oppas ing abutmanta and thc othermember being formed with un abutment between the former abutmente,clutch dislsassociated respectively with the drivingr element and thenon-slidable member of the driven clement und located between one of theend abutments of the A'sliding member and the intermediate abutment onthe non-sliding member, brake disks asseciatedrespeeti Jy with' thestationary eiement and the non diding member, and located between theother end abutment of the sliding, drinn' Mind' .member and theintermediate abutme means for sliding'the slidi nes-,ite directions,substantif! the pero( se described.

il. ,in mechanism. of the telus demribed, a driving element, a drivenelemenlnd n stationary element, the drivenelnent including two membersrotatable together and slidable lengthwise of 'the other, the slidablemember being formed with opposin abutments and the other member beingormed with an abutment between the former abut ments, clutch disksassociated respective] with the driving element and the non-slid ablemember of the driven element and lotti l 'een one of the end abutmentsng; member und the intermediate mt on the non-sli ng member, brakel.sfitarie.ted respectif ly with the stationary element and the nifi-sliding member and lcca/ted between ti.,

member in op v pas and` for 'e other end abutment of the sliding drivenelement and the intermediate abutment, e main spring arranged tonormally press the sliding membei.' in one direction to hold the clutchdisks affainst the intermediate abutment, and additional. springmeansacting on the brake disks and tending' to normally hold the brake dicksin fric-201ml contact against the action of the main spring on the aacnanas, and .means for operating the mk aber against the action of the 'iSpring,"snbetantially as and for the rgiosc fiiiecmeu.- y

in mechanism eftlieclass described, a firirire; element, a drivenelement, and ay si v elcnier the :lriicn element n- 'i .no inenaherotatable together und u'iiiaiiie lcngtiiwise of the other, the memberbeing` formed with oppos: tinents and the other member being esiti; anabutment between the ah tmcnts, clutch disks associated wir with thedriving element and ,imr-alifiable member ot' the driven element andlocated between one of the endy abetmcnte of the sliding member and theintermediate abutment on the nonsliding member, brake disks,associatedrespectively with the stationary element and the nonsiiding; member, andbetween the other end abutment of the sliding driven member and theintermediate abutment, a main spring acting on the sliding driven memberto hold the clutch disks in engagement, und additional relatively weakspring means tending to separate one group of the clutch disks and tehold another group of the clutch disks against the intermediateabutment, and means for operating the sliding member against the actionof the main sprlng, subetantaly es und for the pur cse set forth.

lit In mechanism of the c ess described, a, driving element, a drivenelement, and a stationary element, the driven element including twomembers rotatable together and one sliduble lengthwise ot' the other,the slidehle member boing formed with opposing,r zibutrnents and theother member being formed with an abutment between the formernbutnients, clutch disks associated respectively with the drivingelement and the non-slldoble member of the driven element and locatedbetween one of the end abutments of the sliding member end theintermediate abutment on 'the non-sliding ineniloei', brake disksassociated respectively with the stationary element and the nonslidingmember, nndloceted between 'the other end abutment o'f the sliding'driven member und the intermediate abutment, a

main spring acting on the slidirg driven,

member to hold the clutch disks in engegenient, additional .relativelyWeak spring means tending to support one group of the clutch disks andto hold another group of the clutch disks against the intermediateabutment, spring ineens tending to normally hold the brake disksinengagement against the separating action of the main spring, undineens for operating the sliding member against the acti on of the mainspring, substantially as and for the per` pose described.

CLARK l/V. PARKER. Vi/'itnesses F. l. GRAVES, LYMA'N S. ANDREWS, Jr.

